Re: Progress bar lies
Some that use a clock end up guessing then adding more time (for example, deleting a snapshot on a VM, which I see more on VirtualBox than others, but YMMV).
Others equate number of files copied as equivalent to percentage complete, regardless of size of the file, or other associated housekeeping that needs doing, so the progress bar goes in fits and starts (punctuated by long stops).
Then there are ones that split up the install into 'initialise', 'copy files', 'install files', 'configure system', 'post process cleaning', 'removing backups', etc., each step with a run-through of a full 100% progress bar.
And those that reckon to offer a /q "silent" install, but still wait for occasional confirmation key presses, usually at 20% through a 2 hour process that you walked away from after 10 minutes, but didn't notice for an hour or so.
Too many different ways for software to give me the irrits, TBH. Impatience sucks like a limpet on a lemon...